#
# $Id: ser.cfg,v 1.5 2005/05/21 19:40:43 lemp Exp $
#
# simple quick-start config script
#

# ----------- global configuration parameters ------------------------
#debug=3         # debug level (cmd line: -dddddddddd)
#fork=yes
#log_stderror=no        # (cmd line: -E)

/* Uncomment these lines to enter debugging mode 
debug=7
fork=no
log_stderror=yes
*/

check_via=no    # (cmd. line: -v)
dns=no           # (cmd. line: -r)
rev_dns=no      # (cmd. line: -R)
#port=5060
#children=4
fifo="/tmp/ser_fifo"

mhomed=1

# ------------------ module loading ----------------------------------

# Uncomment this if you want to use dbtext database
loadmodule "/usr/lib/ser/modules/dbtext.so"

loadmodule "/usr/lib/ser/modules/sl.so"
loadmodule "/usr/lib/ser/modules/tm.so"
loadmodule "/usr/lib/ser/modules/rr.so"
loadmodule "/usr/lib/ser/modules/maxfwd.so"
loadmodule "/usr/lib/ser/modules/usrloc.so"
loadmodule "/usr/lib/ser/modules/registrar.so"
loadmodule "/usr/lib/ser/modules/inner_nathelper.so"

# Uncomment this if you want digest authentication
# dbtext.so must be loaded !
#loadmodule "/usr/lib/ser/modules/auth.so"
#loadmodule "/usr/lib/ser/modules/auth_db.so"

# ----------------- setting module-specific parameters ---------------

# -- usrloc params --

#modparam("usrloc", "db_mode",   0)

# Uncomment this if you want to use dbtext database 
# for persistent storage and comment the previous line
modparam("usrloc", "db_mode", 2)
modparam("usrloc", "db_url", "/var/dbtext/ser")

# -- auth params --
# Uncomment if you are using auth module
#
#modparam("auth_db", "calculate_ha1", yes)
#
# If you set "calculate_ha1" parameter to yes (which true in this config), 
# uncomment also the following parameter)
#
#modparam("auth_db", "password_column", "password")

# -- rr params --
# add value to ;lr param to make some broken UAs happy
modparam("rr", "enable_full_lr", 1)


# -------------------------  request routing logic -------------------

# main routing logic

route{

        # initial sanity checks -- messages with
        # max_forwards==0, or excessively long requests
        if (!mf_process_maxfwd_header("10")) {
                sl_send_reply("483","Too Many Hops");
                break;
        };
        if ( msg:len > max_len ) {
                sl_send_reply("513", "Message too big");
                break;
        };

        # loose-route processing
        if (loose_route()) {
                t_relay();
                break;
        };

        if (method=="REGISTER") 
        {
                if (src_ip==192.168.0.0/16 or src_ip==172.16.0.0/12 or src_ip==10.0.0.0/8)
                {       
                        if (!nat_uac_test("1")) 
                        {
                                log(1, "Dont't like that STUN thing\n");
                                break;
                        }                                     
                        if (uri==myself)
                        {
                                #wants to register only at router, no external SIP provider  
                                #log(1, "internal REGISTER\n");
                                #make entry at local registrar
                                save("location");
                        }
                        else    
                        {       
                                #wants to register at external SIP provider 
                                #log(1, "external REGISTER\n");
                                #check if user is already registered at internal registrar 
                                if (!lookup("location"))
                                {
                                        #if not do a drive-by registration
                                        #for registration at internal registrar
                                        #without a reply 
                                        save_noreply("location");       
                                };
                                #Fixing of private address in contact hf
                                fix_nated_contact("192.168.1.2"); 
                                if (!t_relay()) 
                                {
                                        sl_reply_error();
                                };
                        };
                        break;
                }
                else
                {
                        #Handling of registrations from internet
                        #Default is registrations not accepted
                        break;
                };                   
        };   

        if (src_ip==192.168.0.0/16 or src_ip==172.16.0.0/12 or src_ip==10.0.0.0/8)
        {
                if (uri==myself)
                {
                        if (!lookup("location") and !lookup("aliases")) 
                        {
                                sl_send_reply("404", "Not Found");
                                break;
                        };
                }
                else
                {
                        if (!lookup("location") and !lookup("aliases"))
                        {    
                                #log(1, "outgoing request\n");                           
                                fix_nated_contact("192.168.1.2");
                                if (method=="INVITE")
                                {
                                        setflag(5);
                                        force_rtp_proxy("FAIE");
                                        #log(1, "forcing RTP proxy IE\n");   
                                }; 
                                t_on_reply("1");
                        };        
                };                      
        }
        else
        {
                if (uri==myself)
                {
                        if (lookup("location") or lookup("aliases"))
                        {       
                                #log(1, "incoming request\n");
                                if (method=="INVITE")
                                {
                                        setflag(5);
                                        force_rtp_proxy("FAEI");
                                        #log(1, "forcing RTP proxy EI\n");   
                                };
                                t_on_reply("1");                                         
                        }
                        else
                        {
                                sl_send_reply("404", "Not Found");
                                break;
                        }; 
                };                               
        
        };
        # forward to current uri now; use stateful forwarding; that
        # works reliably even if we forward from TCP to UDP
        if (!t_relay()) {
                sl_reply_error();
        };

}


onreply_route[1]
{
        if (src_ip==192.168.0.0/16 or src_ip==172.16.0.0/12 or src_ip==10.0.0.0/8)
        {
                #log(1, "outgoing reply\n");
                fix_nated_contact("192.168.1.2");
                if (isflagset(5) && status =~ "(183)|2[0-9][0-9]")
                {
                        force_rtp_proxy("FAIE");
                };
        }
        else
        {
                #log(1, "incoming reply\n");
                if (isflagset(5) && status =~ "(183)|2[0-9][0-9]")
                {                
                        force_rtp_proxy("FAEI");
                };
        };
}